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Location:
Brisbane
Registered:
June 2003
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Power to weight ratios
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Sun, 28 March 2004 05:35
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What is a *realistic* kilowatt / kilogram ratio to aim for when looking at performance 4door sedans?
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Location:
Newcastle NSW
Registered:
June 2002
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Re: Power to weight ratios
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Sun, 28 March 2004 08:53
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1:1 is good if you can get it 
but realisticly 100Kw@wheels in 1000Kg car will make for an enjoyable ride.
so 10Kg:1Kw is a reasonable ask for an average Jap turbo saloon while many cars will be better than that
mmmmmmmmm JZX100 Chaser 
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Power to weight ratios
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Sun, 28 March 2004 10:20
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id agree, 10:1 make for a good drive. lower is a bit sedate, higher, and you start getting f a s t
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Power to weight ratios
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Sun, 28 March 2004 10:52
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hmm, 70kw at wheels in KE10 would be fun...
i'd think of it more as Nm/kg .. in a performance oriented car you'd have around 4:1 rear end anyway, so gearign would be similar...
ridiculous (ie sports sedan level) would be around 2kg/Nm (mmmm 360Nm in 720kg car ) enough to spin tyres in 4th just from torque!
my current 4K'd KE15 is 6.9kg/Nm and it's not exactly scintillating, but still low speed fun. (15kg/rwkw)
4AGE'd i would be around 4.8kg/Nm (13kg/rwkw)
BEAMS 3SGE'd it would be around 3.6kg/Nm
Cya, Stewart
oh realistic? i'd say 3.5kg/Nm ie 285Nm in 1000kg car. maybe 4kg/Nm.
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Location:
Brisbane
Registered:
May 2002
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Re: Power to weight ratios
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Sun, 28 March 2004 11:18
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| Alainve wrote on Sun, 28 March 2004 18:53 |
so 10Kg:1Kw is a reasonable ask for an average Jap turbo saloon while many cars will be better than that
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Mine is about 5kg:1kW. Hmmm, maybe that's why it's fast?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Power to weight ratios
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Sun, 28 March 2004 11:24
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if i recall correctly, when the yamaha R1 was released, it was the highest power to weight ratio of a production vehicle..
that was 1.16kg/hp or about 1.55kg/kw
in the article i read, it said a 9 sec drag car was about 1hp/kg, or 1.34kg/kw
these are engine hp tho, not rwkw.
Cya, Stewart
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